Stefanos Tsitsipas’ rivalry with Daniil Medvedev will add another chapter after the Greek player beat Alexandre Muller 6-3, 7-5 at the Shanghai Masters on Tuesday. The 12th-ranked Tsitsipas and the Russian former U.S. Open champion will meet for a 14th time, and first in nearly a year. The fifth-ranked Medvedev has a commanding 9-4 lead in the head-to-head series, which has spilled over into a war of words off the court in the past. “I consider him someone that I respect on the tour, much more than I did before,” Tsitsipas said. “We´ve had some heated things on the court in the past, but I think those things have resolved themselves over time, and we also had the time to speak about those things and have a common understanding of why these things happen. “What is missing is trying to get a good win under my belt, and that will redeem my efforts for so far of trying to get better. My whole goal is to get out there, play the best tennis that I can.” Tsitsipas had to wait out a two-day rain delay to play his third-round match against Muller, but looked in complete control until losing his serve at 5-3 in the second set. Unperturbed, the Greek broke back to love to clinch the match and renew his six-year rivalry with Medvedev.